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Thread Subject:
svm classification number of validations

Subject: svm classification number of validations

From: yafit maymon

Date: 11 Apr, 2011 08:25:04

Message: 1 of 1

hello,

i am using svm classification in matlab with this code:

>> indices = crossvalind( 'holdout',groups,0.5)
>> cp = classperf ( groups )

>>test = (indices == 1); train = ~test
     svmStruct = svmtrain ( mat1 ( train,:) , groups ( train ) ,'kernel_function', 'rbf','RBF_Sigma',75,'BoxConstraint',75)
     classes = svmclassify ( svmStruct , mat1 (test,:) )
     classperf ( cp , classes ,test )

when i watch cp object i can see among other things, the number of validations done on the test group. how does matab chooses this number? can i control it somehow?

thanks!
yafit

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